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- Explanation of the grid defintion definition for wind on a Spiderweb grid.
The spiderweb Spiderweb grid is defined using the number of rows 'n_rows' and the number of columns 'n_cols'.
The number of rows is used to divide the radius of the Spiderweb in small rings of width spw_radius/n_rows m.
The number of colums columns is used to divide the circle in parts with angles of 2*pi/n_cols rad.
The wind direction is defined according to the nautical convention, i.e. wind from the North has direction 0 degrees and the angle increases when turning clockwise.
If the grid_unit is 'degree' than the coordinates of the spiderwebSpiderweb/cyclone eye are given in spherical coordinates using keywords 'x_spw_eye' and 'y_spw_eye'.
For each time of the time series, the coordinates of the spiderweb Spiderweb eye and the pressure drop in the eye must be specified.